19810923

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 30108672

約数和(自身を除く): 10297749

約数列:

[1, 3, 11, 33, 47, 53, 141, 159, 241, 517, 583, 723, 1551, 1749, 2491, 2651, 7473, 7953, 11327, 12773, 27401, 33981, 38319, 82203, 124597, 140503, 373791, 421509, 600331, 1800993, 6603641, 19810923]

約数ペア:

[(1, 19810923), (3, 6603641), (11, 1800993), (33, 600331), (47, 421509), (53, 373791), (141, 140503), (159, 124597), (241, 82203), (517, 38319), (583, 33981), (723, 27401), (1551, 12773), (1749, 11327), (2491, 7953), (2651, 7473)]